Braille Displays

Braille on Apple Products

I am shopping for a new braille display. I have had Alvas since the mid-90's. Not only am I looking for something that I can use for work with my laptop, but also to connect via Bluetooth with my iPhone. I am hoping to find something with 40 cells, with touch cursors, and a display that has quick response time, as I am a fast braille reader. A braille keyboard is an interesting concept, but not a must, as I've never had the option of braille input on my displays before. If anyone here would be willing to tell me what they're using and the pros and cons, that would be greatly appreciated. Asking any of these distributors for a demo has not been successful (with the exception of Freedom Scientific being willing to show me the Focus 40 Blue.)